diff --git a/README.md b/README.md
index 1b11253..16844c4 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,8 @@ deploy:
   concurrency: <number of connections> // Optional
   region: <region>  // Optional, see https://github.com/LearnBoost/knox#region
   headers: <headers in JSON format> // pass any headers to S3, usefull for metadata cache setting of Hexo assets
+  prefix: <prefix> // Optional, prefix ending in /
+  delete_removed: <true|false> // if true will delete removed files from S3. Default: true
 ```
 
 If you installed the AWS command-line tool and provided your credentials via `aws configure`,
diff --git a/lib/deployer.js b/lib/deployer.js
index a65f18a..d0a91c6 100644
--- a/lib/deployer.js
+++ b/lib/deployer.js
@@ -33,6 +33,9 @@ module.exports = function(args) {
   var log = this.log;
 
   var customHeaders = args.headers || {};
+  var deleteRemoved = args.hasOwnProperty('delete_removed')
+    ? Boolean(args.delete_removed)
+    : true;
 
   if (!args.bucket || !config.s3Options.accessKeyId || !config.s3Options.secretAccessKey) {
     var help = '';
@@ -47,7 +50,8 @@ module.exports = function(args) {
     help += '    [concurrency]: <concurrency>\n';
     help += '    [region]: <region>          # See https://github.com/LearnBoost/knox#region\n',
     help += '    [headers]: <JSON headers>   # Optional, see README.md file\n';
-    help += '    [prefix]: <prefix>          # Optional, prefix ending in /\n\n';
+    help += '    [prefix]: <prefix>          # Optional, prefix ending in /\n';
+    help += '    [delete_removed]: <delete>  # Optional, if true will delete removed files from S3 /\n\n';
     help += 'For more help, you can check the docs: ' + chalk.underline('https://github.com/nt3rp/hexo-deployer-s3');
 
     console.log(help);
@@ -56,7 +60,7 @@ module.exports = function(args) {
 
   var params = {
     localDir: publicDir,
-    deleteRemoved: true,
+    deleteRemoved: deleteRemoved,
     s3Params: xtend({
       Bucket: args.bucket,
       Prefix: args.prefix